Definition 2.20 (Def. 3.7 and 3.8 in [1]}) 
Let \((L,[\cdot ,\cdot ]_{L},\rho )\)  be a Lie algebroid, let \(\Lambda ^{k}=\wedge ^{k}L^{*}\)  for \(k=0,1,2,...\) ,
and let \(\omega \in \Gamma (\Lambda ^{k})\)  and \(X_0,...,X_k \in \Gamma (L)\) .
